1 Land contracts or contracts for deed are a security agreement between a seller, called a Vendor, and a buyer, called a Vendee.  The Vendor agrees to sell a property by financing the purchase for the Vendee.
The two DNA strands are held together by interchain hydrogen bonds. H-bonds pair the bases in one chain to the complementary bases in the other chain. (A/T and G/C).
Hydrogen bonds join the bases of complementary DNA strands. Three hydrogen bonds form between adenine and guanine, while two hydrogen bonds form between cytosine and thymine. Hydrogen bonds join the bases of complementary DNA strands. Three hydrogen bonds form between adenine and guanine, while two hydrogen bonds form between cytosine and thymine.